Combes, Pierre-Philippe; Lafourcade, Miren; Mayer, Thierry - C.E.P.R. Discussion Papers - 2003
McCallum (1995) shows in an influential contribution that, even when controlling for the impact of bilateral distance and region size, borders sharply reduce trade volumes between countries. We use in this Paper data on bilateral trade flows between 94 French regions, for 10 industries and two...